Download Chpts 2-7 - faculty at Chemeketa

CH110
Review for Exam 1: Chpts 2-7
jc10/15
Timberlake 12th edition
Objectives: You should be able to:
Chpt 2: Measurements
1.
Convert metric units into other metric units (i.e. liters to milliliters)
2.
Know the abbreviations of the metric units
3.
Be able to multiply, divide, add, and subtract using proper number of significant figures in your answer
4.
Form conversion factors and complete conversion problems, canceling units as needed.
5.
Convert from regular to scientific notation and from scientific notation back to regular notation.
Chpt 3: Matter & Energy
6.
Be able to convert temperatures between unit in Celsius, Kelvin and Fahrenheit
7.
Know the difference between temperature and specific heat
8.
Know the difference between a physical change and a chemical change
9.
Be able to explain the differences in properties between solids, liquids and gases
10.
Identify the states of matter and changes of state on a heating curve.
11.
Calculate the energy (in calories) gained or lost by a specific amount of a substance for a specific temperature
change. (How much energy does it take to heat 20 g of water from 22oC to 77oC?)
12.
Determine the energy (in kcals) possible from metabolism of foods given their carbohydrate, fat, and protein
content.
Chpt 4: Atoms and Elements
13.
Know the names and symbols for the first 30 elements on the Periodic Table plus the elements Br, Ag, Au, I,
Hg, Sn, and Pb (not the atomic numbers)
14.
Know the name of an element from its symbol or its period and group number. (ie. What is the name of the element
Cr? What is the name of the element in Group VI, period 3?)
15.
16.
17.
18.
Distinguish among atoms, ions, and isotopes. Understand the relationship of isotopes to the atomic mass of an
element on the periodic table.
Recognize the important subdivisions of the periodic table: groups (families), metals, metaloids, and
nonmetals. Classify an element as a metal or nonmetal.
Obtain information about an element from the periodic table, such as the mass, number of protons, and
electrons in an atom of any element.
Use atomic number and mass number of an atom to determine the number of protons, neutrons, and electrons
in the atom.
Chpt 5: Nuclear
19.
Describe the three forms of natural radioactivity
20.
Radiation exposure can be limited by what three ways?
21.
Be able to balance a nuclear equation.
Chpt 6: Ionic & Molecular Compounds
22.
Use the octet rule to predict the charge of common cations and anions.
23.
Know the role of valence electrons in bonding
24.
Be able to name and/or write the formulas of ionic compounds
25.
Be able to name and/or write the formulas of covalent compounds
26.
Be able to predict molecular structures and polarity from a chemical formula
Chpt 7: Chemical Quantities & Reactions
27.
Balance a given chemical equation.
28.
Classify an equation as a combination, decomposition, single replacement, double replacement and/or
combustion reaction.
29.
Determine whether an element is being oxidized or reduced in a chemical reaction.
30.
Know what is meant by the terms: exothermic, endothermic, activation energy, calorie, kilocalorie, and
Calorie.
31.
Draw an energy diagram for an exothermic or endothermic reaction with or without a catalyst.
32.
Describe methods for increasing or decreasing the rate of a reaction.